{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2922-2CV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2922-2CV0","canonicalUrl":"https://aoctrl.com/siemens/3RV2922-2CV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2922-2CV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2922-2CV0 undervoltage release, 400 V AC/50 Hz, 2 NO leading auxiliary contacts, spring-type terminals, for 3RV2 circuit breakers sizes S00, S0, S2, S3.","salesMarkdown":"The release snaps onto the breaker via the standard DIN-rail mount — no additional panel space needed beyond the breaker's own 18.5 mm width. Mounting is snap-on only — no screws required. The release fits 3RV2 breakers in sizes S00, S0, S2, and S3, which covers the common motor-protector range up to about 100 A frame. The front face is IP20 and finger-safe per IEC 60529, so it passes touch-protection checks without a separate cover. Two NO leading auxiliary contacts are integrated. These change state before the main contacts open, giving the PLC or safety relay a pre-trip signal — useful for controlled motor deceleration or process interlock sequencing.","metaTitle":"Siemens 3RV2922-2CV0 SIRIUS Undervoltage Release, 400 V AC","metaDescription":"Siemens SIRIUS 3RV2922-2CV0 undervoltage release, 400 V AC/50 Hz, 2 NO auxiliary contacts, spring-type terminals, for 3RV2 breakers. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"68 mm","Width":"18.5 mm","Height":"90 mm","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","Fastening Method":"snap-on mounting","Final Rated Value":"60 Hz","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Initial Rated Value":"50 Hz","Product Designation":"undervoltage release","Suitability For Use":"motor circuit breaker","at 50 Hz rated value":"400 V","Design Of The Product":"with 2 auxiliary contacts","Size Of The Circuit-Breaker":"S00, S0, S2, S3","Insulation Voltage Rated Value":"690 V","Design Of Short-Circuit Protection":"fuse","reference code acc. to DIN EN 61346-2":"F","Type Of Voltage Of The Control Supply Voltage":"AC","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","protection class IP on the front acc. to IEC 60529":"IP20","number of NO contacts for auxiliary contacts leading contact":"2","insulation voltage with degree of pollution 3 at AC rated value":"690 V","number of CO contacts of auxiliary contacts instantaneous contact":"0","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=496164&mlfb=3RV2922-2CV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2922-2CV0/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RV2922-2CV0 used for?","answer":"It is an undervoltage release for Siemens 3RV2 motor circuit breakers. When the control voltage (400 V AC/50 Hz) drops below the dropout threshold, it trips the breaker to protect the motor from undervoltage conditions."},{"question":"What breaker sizes does the 3RV2922-2CV0 fit?","answer":"It fits 3RV2 breakers in sizes S00, S0, S2, and S3, covering the common motor-protector range."},{"question":"Where can I buy the 3RV2922-2CV0?","answer":"The part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Does the 3RV2922-2CV0 work with a 3RT5036-1AB00 contactor?","answer":"No. The 3RV2922-2CV0 is an undervoltage release for 3RV2 circuit breakers only. It does not mount on or coordinate with the 3RT5036-1AB00 power contactor, which is a different device class (contactor, not breaker)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2922-2CV0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RV2922-2CV0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}